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US 5,980,904 AGranted
Skin whitening composition containing bearberry extract and a reducing agent
AssigneeAmway Corporation
InventorsJesse C. Leverett, Jeffrey M. Dornoff
Life of this patent
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AssigneeAmway Corporation
InventorsJesse C. Leverett, Jeffrey M. Dornoff
Estimating the term…
A skin-whitening composition that includes bearberry extract and a reducing agent. The composition can be topically applied to the human skin and can include one or more whitening agents in combination with bearberry extract and the reducing agent to achieve an enhanced whitening effect. A method of whitening human skin includes topically applying to the skin a composition containing bearberry extract and a reducing agent in an amount and for a period of time sufficient to visibly whiten the skin. The method includes incorporating bearberry extract and the reducing agent with known whitening agents and applying to the skin in an amount and for a period of time sufficient to visibly whiten the skin.
A composition for topical use that has a melanin synthesis-inhibiting activity, the composition comprising bearberry extract and a reducing agent, wherein the reducing agent is present in an amount effective to increase the skin-whitening efficacy of the bearberry extract and the bearberry extract is from Arctostaphylos uva-ursi and is a glycolic extract standardized to >50 tyrosinase inhibition units per milliliter.
In a skin-whitening composition containing bearberry extract from Arctostaphylos uva-ursi and is a glycolic extract standardized to >50 tyrosinase inhibition units per milliliter, the improvement comprising an amount of a reducing agent effective to increase the skin-whitening efficacy of the bearberry extract.
A method of visibly whitening human skin comprising applying on the skin a composition containing bearberry extract from Arctostaphylos uva-ursi and is a glycolic extract standardized to >50 tyrosinase inhibition units per milliliter and an effective amount of a reducing agent, whereby the composition is applied in an amount and for a period of time sufficient to visibly whiten the skin.
A method of increasing the skin-whitening efficacy of a skin-whitening composition containing bearberry extract from Arctostaphylos uva-ursi and is a glycolic extract standardized to >50 tysoniase inhibition units per milliliter, the method comprising adding an effective amount of a reducing agent.
Dependencies are inferred from the claim text.